代码拉取完成,页面将自动刷新
package fastdht
import (
log "github.com/golang/glog"
"net"
)
const (
maxUDPPacketSize = 4096
)
func listen(address *net.UDPAddr) (conn *net.UDPConn, e error) {
conn, err := net.ListenUDP("udp4", address)
if err != nil {
log.Fatal(err)
}
log.V(5).Infof("DHT开始监听,IP:%s,Port:%d", address.IP.String(), address.Port)
return
}
func sendMsg(conn *net.UDPConn, address *net.UDPAddr, query interface{}) {
b, err := encodeMsg(query)
if err != nil {
return
}
if _, err := conn.WriteToUDP(b, address); err != nil {
log.V(3).Infof("DHT:node write failed to %+v, error=%s", address, err)
} else {
log.V(3).Infof("发送成功UDP数据包,IP:%s,Port:%d", address.IP.String(), address.Port)
}
return
}
//
func reviceMsg(conn *net.UDPConn, packetChan chan packetType) {
// 这个函数有三个参数,一个是socket 连接,一个是通道
for {
b := make([]byte, maxUDPPacketSize)
n, addr, err := conn.ReadFromUDP(b)
if err != nil {
log.V(3).Infof("DHT: readResponse error:", err)
continue
}
b = b[0:n]
if n == maxUDPPacketSize {
log.V(3).Infof("DHT: Warning. Received packet with len >= %d, some data may have been discarded.\n", maxUDPPacketSize)
}
if n > 0 && err == nil {
p := packetType{b, addr}
select {
case packetChan <- p:
continue
default:
continue
}
}
}
}
//func sendFindNode(conn *net.UDPConn, address *net.UDPAddr) {
// query := new(queryMessage)
//
// tid := tranId()
// target := randNodeId().String()
// nid := randNodeId()
//}
此处可能存在不合适展示的内容,页面不予展示。您可通过相关编辑功能自查并修改。
如您确认内容无涉及 不当用语 / 纯广告导流 / 暴力 / 低俗色情 / 侵权 / 盗版 / 虚假 / 无价值内容或违法国家有关法律法规的内容,可点击提交进行申诉,我们将尽快为您处理。